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AccessibleValue.java API Doc Java SE 5 API 2333 Fri Aug 26 14:57:30 BST 2005 javax.accessibility

AccessibleValue

public interface AccessibleValue

The AccessibleValue interface should be supported by any object that supports a numerical value (e.g., a scroll bar). This interface provides the standard mechanism for an assistive technology to determine and set the numerical value as well as get the minimum and maximum values. Applications can determine if an object supports the AccessibleValue interface by first obtaining its AccessibleContext (see {@link Accessible}) and then calling the {@link AccessibleContext#getAccessibleValue} method. If the return value is not null, the object supports this interface.

see: Accessible
see: Accessible#getAccessibleContext
see: AccessibleContext
see: AccessibleContext#getAccessibleValue
version: 1.9 10/12/99 15:41:54
author: Peter Korn
author: Hans Muller
author: Willie Walker

Fields Summary
Constructors Summary
Methods Summary
public java.lang.Number getCurrentAccessibleValue()
Get the value of this object as a Number. If the value has not been set, the return value will be null.
return
value of the object
see
#setCurrentAccessibleValue
public java.lang.Number getMaximumAccessibleValue()
Get the maximum value of this object as a Number.
return
Maximum value of the object; null if this object does not have a maximum value
see
#getMinimumAccessibleValue
public java.lang.Number getMinimumAccessibleValue()
Get the minimum value of this object as a Number.
return
Minimum value of the object; null if this object does not have a minimum value
see
#getMaximumAccessibleValue
public boolean setCurrentAccessibleValue(java.lang.Number n)
Set the value of this object as a Number.
return
True if the value was set; else False
see
#getCurrentAccessibleValue